Question

turn red?
3. When we put burning candle near the mouth of test tube consisting of sulfuric acid &
pieces of magnesium metal, why does it explode?
4. Why do the colour & solution of copper sulphate change when we take a solution of
copper sulphate in a beaker and put an iron nail in it?​

Answer 1

Answer:

3“Flaming the mouth of a test tube creates an air flow. Hot air rises. Therefore dust/particles in the air are less likely to fall into your tube.

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4iron is more reactive than copper

somit displaces copper from its solution

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Explanation:

Answer 2

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